Bullock, wearing a glittery black dress, received a standing ovation as she accepted the MTV Generation Award in her first live televised appearance since she split with unfaithful husband Jesse James earlier this year. The 45-year-old actress used her acceptance speech to clear up tabloid rumors — "No. 1: I'm not dead." — and smooch Scarlett Johansson.

"No matter what you might have seen or heard or read lately, I love what I do," vowed Bullock, "and I'm not going anywhere."

Bullock was presented with the show's highest honor by her "All About Steve" co-star Bradley Cooper, "The Proposal" co-star Betty White and inexplicably Johansson, the wife of her absentee "Proposal" leading man Ryan Reynolds. When asked why she was there to help hand over the trophy, Johansson hinted she wanted to lay one on Bullock, who awkwardly obliged.

"Now that we have done that," said a smiling Bullock, "can we please go back to normal?"

Bullock was fresh off her surprise appearance Saturday night at Spike TV's "Guys Choice" event in Culver City, Calif., but that show won't be broadcast until June 20. She also received a standing ovation there when she accepted the "Troops Choice" award for entertainer of the year, voted on by members of the military and presented by Robert Downey, Jr.

When it came to the awards at Sunday's freewheeling and often-bleeped ceremony at the Gibson Amphitheatre in Universal City, Calif., "The Twilight Saga" eclipsed the competition for the second year. "New Moon" sucked up trophies for best movie, kiss, female performance for Kristen Stewart and male performance and global superstar for Robert Pattinson.

"I guess 'Twilight' is really awesome, and I agree," said Stewart. "Woo!"

"This is the coolest moment ever," said Kendrick, clutching her popcorn trophy. "This is going on my coffee table."

Tom Cruise launched the show as "Tropic Thunder" character Les Grossman, a profanity-spewing Hollywood producer. In the opening bit, Grossman used Michael Cera as a human bookend and berated "The Karate Kid" star Jaden Smith as his father Will Smith looked on. He later appeared on stage and danced alongside pop star Jennifer Lopez to Ludacris' "Get Back."

Grossman wasn't the only character whose naughty language was frequently censored. The cast of "Scott Pilgrim vs. The World" were barely audible as they presented an emotional Ken Jeong of "The Hangover" with the award for "WTF moment." Christina Aguilera, who performed a medley of tunes from her new album, was also muffled as she sang the saucy "Woohoo."

A comically angry Mark Wahlberg, however, was able to slip several bad words past censors during the presentation of the best villain trophy to Tom Felton of "Harry Potter and the Half-Blood Prince." Wahlberg jokingly hung above the stage with Will Ferrell, spoofing last year's bizarro moment when Sacha Baron Cohen landed on the lap of an offended Eminem.

Peter Facinelli, who plays vampire patriarch Carlisle Cullen in "The Twilight Saga," also sneaked some profanity onto MTV with his expletive-laden acceptance speech for best movie on behalf of the supernatural series' cast. Facinelli made sure to keep it clean when thanking "Twilight" author Stephenie Meyer though.

"I'm not going to curse with you because you're Mormon," he said.

"Parks and Recreation" funnyman Aziz Ansari hosted the 19th annual ceremony. Ansari, who paid tribute to "Avatar" by crooning like R. Kelly, slipped into several characters throughout the two-hour show. Among them: a seedy child stuntman agent, "Precious" and Galifianakis' swagger coach, who accepted the comedic performance award on Galifianakis' behalf.